Four-wheeled motorcycle



FIG. 1 is a perspective view of the a four-wheeled motorcycle configured in accordance with a preferred embodiment of the present invention;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top elevational view thereof; and,

FIG. 7 is a bottom elevational view thereof. 

The ornamental design for a four-wheeled motorcycle, as shown and described. 